131103149 has 2 divisors, whose sum is σ = 131103150. Its totient is φ = 131103148.

The previous prime is 131103127. The next prime is 131103239. The reversal of 131103149 is 941301131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112741924 + 18361225 = 10618^2 + 4285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131103149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131103649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65551574 + 65551575.

It is an arithmetic number, because the mean of its divisors is an integer number (65551575).

Almost surely, 2^131103149 is an apocalyptic number.

It is an amenable number.

131103149 is a deficient number, since it is larger than the sum of its proper divisors (1).

131103149 is an equidigital number, since it uses as much as digits as its factorization.

131103149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 131103149 is about 11450.0283405763. The cubic root of 131103149 is about 508.0085726641.

The spelling of 131103149 in words is "one hundred thirty-one million, one hundred three thousand, one hundred forty-nine".